require 'nokogiri'

Given /^a Ruby application$/ do
  ruby_app_root.should_not be_nil
end

Given /^a Gemfile$/ do
  gemfile = ruby_app_path('Gemfile')
  unless File.exist?(gemfile)
    basedir = File.expand_path('../../..', __FILE__)
    File.open(gemfile, 'w') do |file|
      file.puts "gem 'right_support', :path=>'#{basedir}'"
    end
  end
end

Given /^a gem dependency on '(.*)'$/ do |dependency|
  step 'a Gemfile'
  gem, version = dependency.split(/\s+/, 2)
  gemfile = ruby_app_path('Gemfile')
  File.open(gemfile, 'a') do |file|
    file.puts "gem '#{gem}', '#{version}'"
  end
end

Given /^a Rakefile$/ do
  rakefile = ruby_app_path('Rakefile')
  unless File.exist?(rakefile)
    File.open(rakefile, 'w') do |file|
      file.puts "# Auto-generated by #{__FILE__}"
    end
  end
end

Given /^the Rakefile contains a RightSupport::CI::RakeTask$/ do
  step 'a Rakefile'
  rakefile = ruby_app_path('Rakefile')
  File.open(rakefile, 'w') do |file|
    file.puts "require 'right_support/ci/rake_task'"
    file.puts "RightSupport::CI::RakeTask.new"
  end
end

Given /^the Rakefile contains a RightSupport::CI::RakeTask with parameter '(.*)'$/ do |ns|
  step 'a Rakefile'
  rakefile = ruby_app_path('Rakefile')
  File.open(rakefile, 'w') do |file|
    file.puts "require 'right_support/ci/rake_task'"
    file.puts "RightSupport::CI::RakeTask.new(#{ns})"
  end
end

Given /^a trivial (failing )?RSpec spec$/ do |failing|
  spec_dir = ruby_app_path('spec')
  spec = ruby_app_path('spec', 'trivial_spec.rb')
  FileUtils.mkdir_p(spec_dir)
  unless File.exist?(spec)
    File.open(spec, 'w') do |file|
      file.puts "describe String do"
      file.puts "  it 'has a size' do"
      file.puts "    'joe'.size.should == 3"
      file.puts "  end"
      file.puts
      file.puts "  it 'is stringy' do"
      file.puts "    pending"
      file.puts "  end"
      unless failing.nil?
        file.puts
        file.puts "it 'meets an impossible ideal' do"
        file.puts "  raise NotImplementedError, 'inconceivable!'"
        file.puts "end"
      end
      file.puts "end"
    end
  end
end

Given /^a trivial (failing )?Cucumber feature$/ do |failing|
  features_dir = ruby_app_path('features')
  steps_dir    = ruby_app_path('features', 'step_definitions')
  feature      = ruby_app_path('features', 'trivial.feature')
  steps        = ruby_app_path('features', 'step_definitions', 'trivial_steps.rb')
  FileUtils.mkdir_p(features_dir)
  FileUtils.mkdir_p(steps_dir)

  unless File.exist?(steps)
    File.open(steps, 'w') do |file|
      file.puts "When /^the night has come and the land is dark$/ do; end"
      file.puts "When /^the moon is the only light we see$/ do; end"
      file.puts "Then /^I won't be afraid.*$/ do; end"
      file.puts "Then /^as long as you stand.*by me$/ do; end"
      file.puts "Then /^you run away as fast as you can$/ do; raise NotImplementedError; end"
    end
  end
  unless File.exist?(feature)
    File.open(feature, 'w') do |file|
      file.puts "Feature: Song Lyrics from the 1950s"
      file.puts
      file.puts "  Scenario: Stand By Me"
      file.puts "    When the night has come and the land is dark"
      file.puts "    And the moon is the only light we see"
      file.puts "    Then I won't be afraid, oh, I won't be afraid"
      if failing.nil?
        file.puts "    And as long as you stand, stand by me"
      else
        file.puts "    And you run away as fast as you can"
      end
    end
  end
end

When /^I install the bundle$/ do
  ruby_app_shell('bundle install')
end

When /^I rake '(.*)'$/ do |task|
  @ruby_app_output = ruby_app_shell("bundle exec rake #{task} --trace ", :ignore_errors => true)
end

When /^I debug the app shell$/ do
  STDOUT.puts "Opening shell in a separate window."
  if RUBY_PLATFORM =~ /darwin/
    ruby_app_shell("open -a Terminal .")
  else
    raise "Don't know how to open an app shell for #{RUBY_PLATFORM}; please contribute your knowledge to #{__FILE__}"
  end
  STDOUT.puts "Press Enter to continue Cucumber execution..."
  STDOUT.flush
  STDIN.readline
end

Then /^the output should contain '(.*)'$/ do |expected_output|
  @ruby_app_output.should include(expected_output)
end

Then /^the output should not contain '(.*)'$/ do |expected_output|
  @ruby_app_output.should_not include(expected_output)
end

Then /^the directory '(.*)' should contain files/ do |dir|
  dir = ruby_app_path(dir)
  File.directory?(dir).should be_true
  Dir[File.join(dir, '*')].should_not be_empty
end

Then /^the file '(.*)' should mention ([0-9]) (passing|failing) test cases?$/ do |file, n, pass_fail|
  file = ruby_app_path(file)
  n = Integer(n)

  Pathname.new(file).should exist

  doc = Nokogiri.XML(File.open(file, 'r'))

  all_testcases = doc.css('testcase').size
  failing_testcases = doc.css('testcase failure').size
  passing_testcases = all_testcases - failing_testcases

  case pass_fail
  when 'passing'
    passing_testcases.should == n
  when 'failing'
    failing_testcases.should == n
  else
    raise NotImplementedError, "WTF #{pass_fail}"
  end
end

Then /^the command should (succeed|fail)$/ do |success|
  if success == 'succeed'
    $?.exitstatus.should == 0
  elsif success == 'fail'
    $?.exitstatus.should_not == 0
  else
    raise NotImplementedError, "Unknown expectation #{success}"
  end
end